Linear Slide Arm for Portable X-Ray Positioning

Solution Overview

Problem

Portable x-ray units are cumbersome and difficult to maneuver in crowded neonatal departments, making it challenging to adjust the x-ray source for accurate imaging without moving the entire unit, especially in tight spaces with minimal room for equipment.

Innovation Solution

A linear slide apparatus mounted on a portable x-ray unit allows the x-ray source arm to move vertically and laterally in a limited linear motion, enabling precise adjustments without relocating the main unit, utilizing a linear slide mechanism with rotational capability and bearing housings for smooth movement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the portable x-ray unit is made compact and stationary, then it is easier to maneuver in crowded spaces, but the x-ray source cannot be adjusted for accurate imaging

Engineering Contradiction:
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The x-ray system is divided into two independent parts: a stationary base unit and a movable arm assembly. The arm can be extended and retracted independently from the base, allowing positioning adjustment without moving the entire unit. This segmentation enables the system to maintain compactness while providing positioning flexibility.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The arm assembly incorporates a linear slide mechanism with bearing housings that enable dynamic movement along a linear path. The arm can be extended laterally and vertically within an arc through controlled mechanical motion, transforming the system from a static structure to a dynamically adjustable one while maintaining stability during operation.

Inventive Principle:
Principle #15Dynamics

2Measurement precision

If the entire x-ray unit is moved to adjust the x-ray source, then accurate imaging can be achieved, but the unit becomes cumbersome and difficult to maneuver

Engineering Contradiction:
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system separates the positioning function from the main unit by implementing an independent movable arm assembly. The arm can be extended and retracted to achieve precise positioning of the x-ray source without requiring movement of the entire base unit, thereby maintaining positioning accuracy while reducing the complexity of moving the complete system.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The linear slide mechanism with bearing housings acts as an intermediary between the stationary base and the movable arm. This intermediary component enables smooth, controlled linear motion of the arm along a defined path, facilitating precise positioning while isolating the base unit from movement requirements.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Adaptability or versatility

If the arm is made extendable and retractable, then positioning flexibility is improved, but the mechanism becomes more complex

Engineering Contradiction:
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The arm assembly employs a linear slide mechanism that provides controlled dynamic movement along a linear path defined by two parallel rails. The bearing housings slide along these rails to enable the arm to extend laterally and move vertically within an arc, achieving positioning flexibility through a well-defined mechanical motion pattern.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The linear slide mechanism serves as an intermediary that simplifies the complexity of arm motion. By using two parallel rails and bearing housings, the complex three-dimensional movement of the arm is reduced to controlled linear motion along the rails, making the mechanism more manageable and reliable while achieving the desired positioning range.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS10492747B2System and method for extending and retracting a moveable arm
Publication Date: 2019.12.03
  • US10492747B2 patent drawing
  • US10492747B2 patent drawing
  • US10492747B2 patent drawing

AI summary

The present disclosure relates to a linear slide assembly to assist in the motion of an arm that moves vertically in an arc with the center of access statically attached to the linear slide assembly which is to be utilized in the field of portable x-ray imaging and more specifically, a system and method for extending and retracting a vertically moveable arm in a limited linear motion.